Katie Hopkins is an undoubted success when it comes to making money but how good is she at making the most of her well-earned cash?

She’s a successful businesswoman who's amassed a decent pot of cash not only from her business exploits but also through a celebrity career that took off after making a splash on Sir Alan Sugar’s hit TV series The Apprentice.

But she can still do a little more to boost her wealth and Martin reckons she could save almost £1,000 a year by being a little more savvy with her choice of products.

For one, Katie spends around £3,000 a month on a Lloyds TSB debit card and doen't own a credit card. She spends £2,000 of that in the UK and the remaining £1,000 abroad – all on the Lloyds card.

Yet if she took out a Post Office credit card, which doen't charge the 2.99% fee for foreign use or the £1/per transaction charge that she is currently hit with abroad, she could save around £450 a year.

As she travels on British Airways regularly and has a frequent flyer account with the airline, she could put her £2,000 a year spending in the UK on a BA American Express card. That'd give her one frequent flyer point for every pound spent, which could net an additional 24,000 points a year.

And 20,000 points equals a flight to somewhere like Greece or Turkey, and once she’s earned 20,000 points on her BA Amex card that also entitles her to a free flight for a companion. Katie will have to pay some taxes and charges on those flights but it'd be worth £400 a year to her.

As well as her spending, Katie could make some more money out of her tax-free cash ISAs. Previous years' allowances currently earn less than 4% in a Nationwide account but she could easily get another £100 a year by moving to the top cash ISA, which pays 6.25%.

Take a peek at what was in Colin & Justin's wallet last week.